JPS59101028U

JPS59101028U - Shock absorber

Info

Publication number: JPS59101028U
Application number: JP20077282U
Authority: JP
Inventors: 野際　優寛
Original assignee: トヨタ自動車株式会社
Priority date: 1982-12-27
Filing date: 1982-12-27
Publication date: 1984-07-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来技術によるショックアブソーバ−の構成を
説明する縦断面図、第２図は本考案の実施例の構成を示
す縦断面図である。２１・・・メインシリンダー、２１ａ・・・ピストン上
室、２１ｂ−・・ピストン下室、２２−・・サブシリン
ター、２２ａ・・・ピストン上室、２２ｂ・・・ピスト
ン下室、２４・・・シリンダ一連通管、２５・・・ピス
トンロッド、２６・・・メインピストン、２７・・・サ
ブピストン、２８・・・アウターブツシュ、２９・・・
インチ・−ブツシュ、３１・・・縮み側バルブ、３３・
・・伸ヒ側バルブ、３５・・・作動油。　　−FIG. 1 is a longitudinal sectional view illustrating the structure of a shock absorber according to the prior art, and FIG. 2 is a longitudinal sectional view showing the structure of an embodiment of the present invention. 21... Main cylinder, 21a... Piston upper chamber, 21b... Piston lower chamber, 22-... Sub cylinder, 22a... Piston upper chamber, 22b... Piston lower chamber, 24... Cylinder Continuous pipe, 25... Piston rod, 26... Main piston, 27... Sub piston, 28... Outer bush, 29...
inch-button, 31...retraction side valve, 33.
... Extension side valve, 35... Hydraulic oil. −

Claims

[Scope of utility model registration request]

A sub-cylinder is arranged coaxially with the upper part of the main cylinder whose lower end is closed, and the piston rod inserted from this sub-cylinder to the main cylinder is connected to the main cylinder located inside the main cylinder and the sub-cylinder. The upper and lower piston chambers in the main cylinder separated by the main piston and the upper and lower piston chambers in the sub-cylinder divided by the sub-piston are respectively oil chambers, and The piston upper chamber in the main cylinder and the piston upper chamber which is the oil chamber in the sub-cylinder are connected to each other through a communication pipe (thus, the main piston is connected to the piston upper chamber from the piston lower chamber in the main cylinder to the piston upper chamber). A compression side valve that only allows oil to move, and an expansion side valve that only allows oil to move from the piston upper chamber to the piston lower chamber, are provided, and the inner peripheral surface of the cylinder in the piston upper chamber of the sub-cylinder The cross-sectional area of the annular chamber formed between the outer peripheral surface of the piston rod located there is set to be equal to and smaller than the cross-sectional area of the piston rod located in the upper chamber of the piston of the main cylinder. Shock absorber 0